Enhancing the bone healing on electrical stimuli through the dental implant

PURPOSE: The aim of this study was to evaluate the influence of different density and amplitude of electric current on the percentage of bone-implant contact (BIC) using the finite element method. MATERIALS AND METHODS: ) at 150 kΩ on 10 µA or at 75 kΩ on 20 µA. The percentage of simulated BIC was analysed by varying the electric current from 1 up to 60 µA. The variation of electric current application was simulated for coronal and apical peri-implant regions. RESULTS: The findings showed that a direct and constant electric current source below 10 μA does not provide a proper current density for osseointegration (BIC < 55%). Electric current sources ranging from 10 to 20 μA resulted in an increase in BIC above 60% while BIC reached 90% on 30 to 40 μA. Also, the application of the current source on 20 μA at the apical peri-implant region resulted in a high BIC percentage at around 86.1%. CONCLUSIONS: The location and intensity of the electrical current source can increase the resultant electrical current density at the implant-bone interface and enhance the bone healing process. Although the model is a simplified version of the biological process in the bone-implant interface, such findings can predict a magnitude of electrical current density required to stimulate osseointegration.